From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [PATCH] mmc: core: Lower max_seg_size if too high for DMA Date: Tue, 11 Dec 2018 16:33:26 +0200 Message-ID: <1ecb5b44-92a9-cf05-cb5f-eabb1f3b001f@ti.com> References: <20181031155738.18367-1-tony@atomide.com> <20181129191332.GY53235@atomide.com> <20181211131336.GD9507@n2100.armlinux.org.uk> <20181211134937.GE9507@n2100.armlinux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20181211134937.GE9507@n2100.armlinux.org.uk> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Russell King - ARM Linux , Ulf Hansson Cc: Tony Lindgren , linux-omap , "linux-mmc@vger.kernel.org" , Linux ARM , Kishon List-Id: linux-omap@vger.kernel.org UnVzc2VsbCwKCk9uIDExLzEyLzIwMTggMTUuNDksIFJ1c3NlbGwgS2luZyAtIEFSTSBMaW51eCB3 cm90ZToKPj4+IFRoZSBvbmx5IHRoaW5nIEkgY2FuIHRoaW5rIG9mIGRvaW5nIGlzIGFkZGluZyBp bnRvIG9tYXBfaHNtbWM6Cj4+Pgo+Pj4gICAgICAgICBtbWMtPm1heF9zZWdfc2l6ZSA9IG1pbiht bWMtPm1heF9yZXFfc2l6ZSwKPj4+ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbWlu KGRtYV9nZXRfbWF4X3NlZ19zaXplKGhvc3QtPnJ4X2NoYW4tPmRldmljZS0+ZGV2KSwKPj4+ICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGRtYV9nZXRfbWF4X3NlZ19zaXplKGhv c3QtPnR4X2NoYW4tPmRldmljZS0+ZGV2KSkpOwo+Pj4KPj4+IHRvIGxpbWl0IHRoZSBtYXhpbXVt IHNlZ21lbnQgc2l6ZSB0byB0aGF0IG9mIHRoZSBkZXZpY2UgX2FuZF8gZG1hCj4+PiBlbmdpbmUn cyBjYXBhYmlsaXRpZXMuCj4+Pgo+Pj4gRG9pbmcgdGhpcyBzb2x2ZXMgdGhlIHByb2JsZW0gZm9y IG1lLgo+Pgo+PiBUaGFua3MgZm9yIHRoZSBzdWdnZXN0aW9uIC0gaXQgc291bmRzIGxpa2UgYSBy ZWFzb25hYmxlIHdheSB0byBmaXggdGhlCj4+IHByb2JsZW0sIGF0IGxlYXN0IGZvciBub3cuCj4g Cj4gSSBkb24ndCB0aGluayB0aGVyZSdzIGFueSAiYXQgbGVhc3QgZm9yIG5vdyIgYWJvdXQgdGhp cyBhcHByb2FjaCAtIGl0J3MKPiBub3Qgc29tZXRoaW5nIHRoYXQgdGhlIE1NQyBjb3JlIGNhbiBr bm93IGFib3V0LCBiZWNhdXNlIHdoZXRoZXIgYSBkcml2ZXIKPiB1c2VzIERNQSBlbmdpbmUgb3Ig bm90LCBhbmQgaG93IG1hbnkgY2hhbm5lbHMgaXQgdXNlcyBpcyBjb21wbGV0ZWx5Cj4gZHJpdmVy IHNwZWNpZmljLgoKSSBhZ3JlZS4KCj4gVGhlIG9ubHkgcXVlc3Rpb25hYmxlIHRoaW5nIGlzIGFy b3VuZCB0aGUgZG1hX2dldF9tYXhfc2VnX3NpemUoKQo+IGludGVyZmFjZSwgYnV0IHRoZSBvbmx5 IHdheSB0aGF0J3MgZ29pbmcgdG8gZ2V0IHNvbHZlZCBpcyB0byBlbGltaW5hdGUKPiBpdCBlbnRp cmVseSBhcyBpdCBpc24ndCBhIHBlci1kZXZpY2UgcHJvcGVydHkgd2l0aCBzb21lIERNQSBlbmdp bmVzCj4gc3VjaCBhcyBvbWFwLWRtYSAtIGl0J3MgYSBwZXItcmVxdWVzdCBwcm9wZXJ0eS4gIFRo YXQgYWxzbyBtZWFucwo+IGtpbGxpbmcgdGhlIGNoZWNrIGluIHRoZSBETUEgZGVidWcgY29kZSwg d2hpY2ggaXNuJ3QgZ29pbmcgdG8gZ28gZG93bgo+IHZlcnkgd2VsbC4KPiAKPj4gRG8geW91IHdh bnQgdG8gc2VuZCB0byBwYXRjaCBvciBkbyB5b3UgZXhwZWN0IHNvbWVvbmUgZWxzZSB0byBkbyBp dD8KPiAKPiBJJ2xsIHNlbmQgYSBwYXRjaCBvbmNlIEkndmUgY2hlY2tlZCB0aGUgY29ybmVyIGNh c2VzLCBhbmQgd2hldGhlcgo+IHdlIHNob3VsZCBnbyBmdXJ0aGVyIGFuZCBpbmNsdWRlIG90aGVy IERNQSBwYXJhbWV0ZXJzIGZyb20gdGhlCj4gZG1hIGVuZ2luZS4KClRoZXJlIGlzIG9uZSB0aGlu ZyB3aGljaCBJJ20gdHJ5aW5nIHRvIGZpZ3VyZSBvdXQ6CnNETUEgKGFuZCBFRE1BIGFsc28pIGhh dmUgbGltaXRhdGlvbiBvbiB0aGUgbGVuZ3RoIG9mIGVhY2ggc2cgc2VnbWVudC4KClRvIG1ha2Ug dGhpbmdzIGEgYml0IG1vcmUgaW50ZXJlc3RpbmcgdGhlIGxpbWl0IGlzIG5vdCBpbiBieXRlcywg YnV0IGluCm51bWJlciBvZiBidXJzdHM6Cgo2NTUzNSAqIGJ1cnN0ICogYWRkcl93aWR0aCA9IG1h eF9zZ19zZWdtZW50X2xlbiBpbiBieXRlcy4KCldlIGNhbiBub3Qgc2V0IHRoaXMgdG8gYSBzdGF0 aWMgdmFsdWUgYXMgZGVwZW5kaW5nIG9uIHRoZSBhZGRyX3dpZHRoIGFuZApidXJzdCBpdCBjYW4g YmUgZGlmZmVyZW50IGZvciBlYWNoIHRyYW5zZmVyLgoKLSBQw6l0ZXIKClRleGFzIEluc3RydW1l bnRzIEZpbmxhbmQgT3ksIFBvcmtrYWxhbmthdHUgMjIsIDAwMTgwIEhlbHNpbmtpLgpZLXR1bm51 cy9CdXNpbmVzcyBJRDogMDYxNTUyMS00LiBLb3RpcGFpa2thL0RvbWljaWxlOiBIZWxzaW5raQoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJt LWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3Jn Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtl cm5lbAo=